Fig. 6

The differential cecal microbiota and pathway enrichment of spent hens (n = 8). Different enrichment of microbiota (A) and pathways at level 3 (B) using linear discriminant analysis (LDA) effect size (LDA score ≥ 2, P < 0.05). CON group, Conventional diet; CHF group, Conventional diet with the addition of 1% Chinese herbal formula